Azspider,
you have good armament!! that shotgun with the 6 P (it seems) and the tailcap from Tac-Star should do the trick if you need light, but to add a laser to the barrel you will be better off with this mount (the tri mount)
http://www.brownells.com/aspx/NS/sto...TGUN+MOUNT#sku
Then you can attach and detach your laser and light at will.
The Hi Point will be happy wirh your combo laser and light (a Streamlight M-6 ??)
Good thing your Range is near, mine is 8 miles away.
regards
black bear